What is Synflex® (naproxen sodium) used for?

How should I take Synflex® (naproxen sodium)?

Use Synflex® exactly as directed on the label, or as prescribed by your doctor. Do not take this medicine in larger amounts or for longer than recommended. Use the lowest dose that is effective in treating your condition.

Do not crush, chew, or break a tablet. Swallow it whole.

Shake the oral suspension (liquid) well just before you measure a dose. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

If you change brands, strengths, or forms of Synflex®, your dosage needs may change. Ask your pharmacist if you have any questions about the type of medicine you are using.

If a child is using this medicine, tell your doctor if the child has any changes in weight. Synflex® doses are based on weight in children, and any changes may affect your child’s dose.

If you use Synflex® long-term, you may need frequent medical tests.

This medicine can cause unusual results with certain medical tests. Tell any doctor who treats you that you are using Synflex®.

How do I store Synflex® (naproxen sodium)?

Synflex® is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Synflex® in the bathroom or the freezer. There may be different brands of Synflex® that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush Synflex® down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Precautions & warnings

What should I know before using Synflex® (naproxen sodium)?

Before using this drug, tell your doctor if:

You are pregnant or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.

You are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.

You have allergy with any of active or inactive ingredients of Synflex® or other medications.

You have any other illnesses, disorders, or medical conditions.

Synflex® can increase your risk of fatal heart attack or stroke, especially if you use it long term or take high doses, or if you have heart disease. Even people without heart disease or risk factors could have a stroke or heart attack while taking this medicine.

Do not use this medicine just before or after heart bypass surgery (coronary artery bypass graft, or CABG).

Synflex® may also cause stomach or intestinal bleeding, which can be fatal. These conditions can occur without warning while you are using Synflex®, especially in older adults.

You should not use Synflex® if you have ever had an asthma attack or severe allergic reaction after taking aspirin or an NSAID.

Is it safe during pregnancy or breastfeeding?

There isn’t enough information about the safety of using Synflex® during pregnancy and breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Synflex®.

What side effects can occur from Synflex® (naproxen sodium)?

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.

Interactions

What drugs may interact with Synflex® (naproxen sodium)?

Synflex® may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs, and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Products that may interact with this drug are:

Lithium

Methotrexate

Probenecid

A blood thinner (warfarin, Coumadin, Jantoven)

Heart or blood pressure medication, including a diuretic or “water pill”

Steroid medicine (such as prednisone)

Does food or alcohol interact with Synflex® (naproxen sodium)?

Synflex® may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with Synflex® (naproxen sodium)?

Synflex® may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.

Health conditions that may interact with this drug are:

Heart disease

High blood pressure

High cholesterol

Diabetes

Smoke

A history of heart attack, stroke, or blood clot

A history of stomach ulcers or bleeding;

Asthma

Liver or kidney disease

Fluid retention

Dosage

The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using Synflex® (naproxen sodium).